Tactical Shield Handle Lighting System
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Solution Overview
Problem
Tactical shield handles with integrated lighting systems face issues of mechanical disadvantage in rotation, potential failure points from exposed wires, and limited ambidexterity, leading to operator fatigue and complexity in tactical situations.
Innovation Solution
A stable, ambidextrous tri-handle design with movable forearm supports and three independently operable switches, allowing for easy activation/deactivation of lights regardless of hold technique, using metal-over-capacitive touch switches and programmable microcontrollers for simplified operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mechanical pressure pad-style switch with exposed wire leads is used, then the lighting system can be retrofitted onto existing shields, but the system becomes prone to failure and requires field modifications
Solution Approach 1:
The patent replaces mechanical pressure pad switches with capacitive touch switches that have no moving parts or exposed wire leads. The capacitive sensor detects finger proximity through the shield material, eliminating mechanical wear and exposure to environmental damage, thereby resolving the contradiction between retrofit capability and failure resistance.
Solution Approach 2:
The patent integrates the capacitive touch switch directly into the shield's front surface layer, using the shield material itself as the capacitor structure. This integration eliminates the need for separate mechanical switch components and wire leads, allowing retrofitting while improving reliability through elimination of failure-prone elements.
2Shape
If a horizontal handle design is used, then the handle remains above the operator's chest area, but the operator experiences mechanical disadvantage in left-to-right rotation ability
Solution Approach 1:
The patent introduces a rotatable joint between the horizontal handle and the shield body, allowing the handle to rotate dynamically with the shield during left-to-right movements. This dynamic adjustment maintains the handle's advantageous position above the chest while enabling full rotation capability, resolving the contradiction between handle position and rotation ability.
3Stability of the object's composition
If a rigid forearm support cuff is used, then the operator gains stability, but the cuff creates obstruction to gear bags when the tri-handle is operated in vertical arrangement
Solution Approach 1:
The patent replaces the rigid forearm support cuff with a flexible, collapsible cuff that can dynamically adjust its configuration. When needed, the cuff provides stable support; when not needed or when gear clearance is required, the cuff can be collapsed or repositioned, eliminating obstruction to gear bags while maintaining stability when required.
4Adaptability or versatility
If multiple switches are provided for ambidextrous use, then the operator can access switches regardless of hold technique, but the device complexity increases
Solution Approach 1:
The patent implements a single capacitive touch switch that serves multiple functions and positions. The switch can be activated from different locations on the shield surface and responds to various touch patterns, providing ambidextrous operation without requiring multiple separate switches, thereby maintaining simplicity while achieving versatility.
Data Source
AI summary
A handle and lighting system for a tactical shield includes a handle assembly configured to be mounted on the shield. The handle assembly includes a central horizontal handle, a first side handle on one side, and a second side handle on an opposite side. The handle and lighting system also includes a lighting enclosure housing one or more light sources and configured to be mounted on the shield. The handle and lighting system also includes a first switch mounted on the central horizontal handle, a second switch mounted near a top of the first side handle, and a third switch mounted near a top of the second side handle, which are used to activate or deactivate the one or more light sources.